Database Develop

Dropped signal on v1615 t-mobile uk

I have a strange problem with my Kaiser, the signal with t-mobile uk keeps dropping, I have changed various radios and roms but still have the problem.
Current Phone is: V1615
KAIS130
SPL-3.34.Hard
CPLD-8
Current RomDA Ultimate X-V3 (but have tried anumber of others including stock t-mobile)
Current Radio: 1.70.19.09 (but have tried a number of others)
Any help would be appreciated.
p.s. Yeah on my first post, been a lurker for far too long.

Do you use 3G networking?, if not, try to change under Band menu to GSM network, it works pretty well and most places has good signal for it.
Good Luck!

I've had a nightmare with mine on T-mobile..
3 months ago, my phone developed a problem where it'd drop its network for a few hours, then I'd get a few hours of it working, etc. etc.
It was sent to T-mobile, who just re-flashed it. Still didn't work! Had it sent back and it was away a long time, I believe they replaced the motherboard.
It's been working perfectly for the last month until today - When it hasn't had a network connection the whole day! I'm worried it's still broken..
Hopefully our problems are network based! T-mobile warranty returns are terrible.

Aha! Changing my "Network Type" to GSM from Auto fixed things.
...But now when I receive a text, it vibrates until I reset!

jamiepyrite said:
Aha! Changing my "Network Type" to GSM from Auto fixed things.
...But now when I receive a text, it vibrates until I reset!
Click to expand...
Click to collapse
turn off vibrate

Hi Milmirex & Jamiepyrite, thanks for the comments.
I've changed to GSM and it has been working fine for the last ten minutes, will test for the rest of the day and report back.
Does anybody else have any idea's how to fix 3G problem? I receive emails all day so could really do with this being resolved.
Does anybody else have same issue but with different network? would possibly point to hardware issue if you do.
Thanks again.
P.S. I didn't have the problem with vibrating on receiving texts

I had flashed back to the original T-Mobile ROM when it was doing the vibrate thing. Flashed it again back to the ROM I was using before and all works fine now

jamiepyrite said:
I had flashed back to the original T-Mobile ROM when it was doing the vibrate thing. Flashed it again back to the ROM I was using before and all works fine now
Click to expand...
Click to collapse
Even I have the similar issues from last week. Mine is MDA VARIO III. Even after changing my band to GSM, the issue stil seesm to be there. For about 10 mins i get a weak sigmnal, then it disappears.
Where did you get the original TMobile Vario III ROM. I would like to reflash and see if it fixes the problem. Can you please direct me to the right place
Thanks
Shashi

I think my problem may be similar. I'm with Virgin Mobile but I think they use T-Mobile network.
Have had my Tytn II for over a year & haven't touched software or settings for several months & all has worked well. For the last few weeks I've had no signal in places that other people on the same network (using different phones) are fine. Sometimes if I reboot it comes back. I'm also now finding low battery a lot but I think that the signal issue is draining my batter as it seems to be constantly searching. I get low/no signal with a completely full battery so I don't think that the battery is the problem.
Might this be a H/W problem? Anything I can do to sort this?

i have the same problem. I use Telkomsel operator in indonesia. My Kaiser is HTC Brand.
Any idea why is this happen? Seems like A LOT OF Kaiser went bad this way
Anyone have solution?

im4u2nv said:
i have the same problem. I use Telkomsel operator in indonesia. My Kaiser is HTC Brand.
Any idea why is this happen? Seems like A LOT OF Kaiser went bad this way
Anyone have solution?
Click to expand...
Click to collapse
Yup bro, we had the same problems,
i had already try to use with XL, Indosat, and my own Telkomsel,
but still had this serious problems,until i switch phone mode into GSM
i use this gadget for 3G purpose now i must use only GSM
is there any solutions from HTC? I already count on the net and found a lot of problem like we had and still no solutions from HTC

[Q] Internet Connection Problem

Hi everybody.. I ordered a Droid 4 from the US (i'm in the UK) .. Setup giffgaff unltimited internet, however for some reason the connection isn't stable. Sometimes the connection will not connect for at least 3 hours. I have rooted and tried the AOPK, Avatar and Liquid ROMs, but its the same issue.
I have another Droid 4 running 4.0.4 and tested if it was a problem with the SIM card, but it worked fine.. No problems what-so-ever.
Any suggestions anyone?

andonecool said:
Hi everybody.. I ordered a Droid 4 from the US (i'm in the UK) .. Setup giffgaff unltimited internet, however for some reason the connection isn't stable. Sometimes the connection will not connect for at least 3 hours. I have rooted and tried the AOPK, Avatar and Liquid ROMs, but its the same issue.
I have another Droid 4 running 4.0.4 and tested if it was a problem with the SIM card, but it worked fine.. No problems what-so-ever.
Any suggestions anyone?
Click to expand...
Click to collapse
I eventually gave up on giffgaff because of constantly dropped calls, and incoming calls that would go straight to voicemail. Found it a lot better on O2, which is odd given that both use the same network.
For your problem though, how is it if you use the stock ROM? all those 3 ROMs use custom kernels and I haven't had much luck with them on GSM. If it works on stock then you know the problem isn't the phone or the SIM at least.

Lum_UK said:
I eventually gave up on giffgaff because of constantly dropped calls, and incoming calls that would go straight to voicemail. Found it a lot better on O2, which is odd given that both use the same network.
For your problem though, how is it if you use the stock ROM? all those 3 ROMs use custom kernels and I haven't had much luck with them on GSM. If it works on stock then you know the problem isn't the phone or the SIM at least.
Click to expand...
Click to collapse
I have noticed some of your old posts in the GiffGaff Community Forum.
FWIW, I've been using it in anger for just over a month, and can't say I've had any problems (apart from a short outage across the network, which is apparently quite rare).
Cheers,
Steve.

Lum_UK said:
I eventually gave up on giffgaff because of constantly dropped calls, and incoming calls that would go straight to voicemail. Found it a lot better on O2, which is odd given that both use the same network.
For your problem though, how is it if you use the stock ROM? all those 3 ROMs use custom kernels and I haven't had much luck with them on GSM. If it works on stock then you know the problem isn't the phone or the SIM at least.
Click to expand...
Click to collapse
Yea the problem is persistent on the stock ROM too
Is there any way to calibrate the hardware?

Not that I know of, mine just worked.
Did you update to JB yet? I believe there were changes to the radio firmware included.
Other than that, I don't know. If you have an identical Droid 4 that does work with that SIM then the only explanation left would be faulty hardware

Yea it came originally with JB
Can you tell me how to downgrade to 4.0.4 if you don't mind please.

andonecool said:
Yea it came originally with JB
Can you tell me how to downgrade to 4.0.4 if you don't mind please.
Click to expand...
Click to collapse
AFAIK - You can't downgrade, I'm afraid.
In the Network Mode, have you selected GSM/UMTS, or are you set to Global?
It does sound like you might have a hardware problem.
Cheers,
Steve.

Thanks everyone, but I found a solution ~ a very weird one...
I removed all the custom ROMs and safestrap and did a full factory reset on the stock ROM. Miraculously this did the trick strangely enough.
:z

[Resolved] No LTE?

Sorry if this has already been posted, I try to search as much as possible before making a new thread.
New N910T owner here, upgraded from N900T but got it second-hand from someone who I assume used JTAG to repair the IMEI. Haven't been able to get LTE at all, no matter what ROM I'm using. (CM based ROMs display H/H+, TW based ROMs display 4G) I odin'd by using the latest NK4 full firmware (found here) and still no avail.
I don't have an old sim card so I ruled that out. I used it with my old N900T and it gets LTE here no problem. For some reason this phone just will NOT connect to LTE. Trying to find a network will lead to a 5-15 minute search eventually leading to "No service."
Attached is a picture of the ServiceMode menu. Not sure what other screenshots or information I need but I'd be willing to provide anything if it can help diagnose my problem. (If it IS a JTAG issue I'm screwed, the person who I got the phone from was shady to begin with, couldn't say no to such a low priced Note 4 though.)
Currently running NK4 on Hyperdrive ROM RLS3 with stock kernel.

Fixed by going into *#0808#, selecting DM + MODEM + ADB and then used QPST/QXDM to fix the target port.

same issue
I was wondering if any fixed the issue, I'm getting the same issue..

Can you be more detailed?

I'm having the same issues a ls the first post diacribes. I bought a phone finding out the one I number was changed, well the phone register but I have issues connecting to the network, and I can't connect to the 4G lte. The second post states that something need to updated but no instructions.

Sent from my SM-N910T using XDA Free mobile app

That doesn't work for my phone, had tried it and no go.

I was wondering how you fix your phone port just like in post 2

I know this is an old post, but did you ever get it resolve?

Hi member Ohmygaa. Accidentally I found your post here and I found it very interesting since I have exactly the same problems with my note 4 tmobile sm-n910t as you described. My phone which I bought on ebay shows no lte only 4g doesn't matter what rom I'm using. Even though Internet shows 4g but it works very slow, can't practically download anything, even websites don't work. Searching for signal every 20 minutes so I'm practically unable to use it. The imei *#06# is different than that on the sticker under battery. So my question is could you be more specific with this fixing of target port ,please? I could try your method maybe it would help to fix my phone? Best regards from NY

"Mobile network not available" Trouble ... ?do I need a new phone?!

I am totaly lost as to how to proceed;
I was on Moto X 2013 stock Android 4.4 for over 10 months on a rooted (not a recent root) phone when one day, I suddenly started to get a message saying "Mobile Network not available" on attempt to make a call.
Data is working fine!
The same sim works on another phone. No other sim works on my Moto X 2013... same issue (the phone was sim unlocked)
I have tried literally everything I can think of:
1. Reinstalled stock 4.4.
2. Upgraded to 5.1 OTA
3. Set network type to WCDMA only & GSM only (as well as working through the entire list of network types)
4. Selecting my network operator + setting the network operator selection to "choose automatically"
What is going on?
Why should the problem suddenly start?
And Do I Need a New Phone??

Interesting. Check and make sure that the IMEI isn't blacklisted.
When you say that data isn't working I can't help but think that you're talking about Wi-Fi because it doesn't use a cellular network just to verify what data is working?
Sent from my XT1060 using Tapatalk

SR3TLAW said:
When you say that data isn't working I can't help but think that you're talking about Wi-Fi because it doesn't use a cellular network just to verify what data is working?
Sent from my XT1060 using Tapatalk
Click to expand...
Click to collapse
By data, I do mean mobile data. Not WiFi. Which makes it more odd.
Also, imei is Not blacklisted.

I have the same issue and tried the same troubleshooting as you. I activated a different phone for now. Another user on the xda forum solved his issue:
Solved mine by going into the settings menu, about phone i think, and updating PRL, profile, manually activating.
Click to expand...
Click to collapse
I had a stock xt1056 running 4.4.4. I receive 'no service' and all the Sprint reps tell me the moto x uses Wimax 4g which has been rolled over to 4g LTE. Still not sure why I can't receive 3g or lower service in my area .

reso newt said:
I have the same issue and tried the same troubleshooting as you. I activated a different phone for now. Another user on the xda forum solved his issue:
I had a stock xt1056 running 4.4.4. I receive 'no service' and all the Sprint reps tell me the moto x uses Wimax 4g which has been rolled over to 4g LTE. Still not sure why I can't receive 3g or lower service in my area .
Click to expand...
Click to collapse
I am in the UK so I am not aware of the issue you highlighted on Sprint (as we do not have it here) ... my issue seems nothing to do with network - I have tried multiple sims from various network and still no luck.
Also, I do not see any setting to update PRL...

I was wondering if you made any progress with the "No mobile network available". I tried a multitude of options with no success regarding the mobile error on my phone.
I think an OTA update at the beginning of November bugged my antennae firmware....best guess I can come up with. I only made OTA updates (no OS altercations) prior to the bugged antennae update. Looks like I have to get a new phone.
Edit: I forgot to mention that the repair technician that I spoke to in early November that told me that my phone cannot connect to 4G LTE admitted he was wrong today.
nirpaudyal said:
I am in the UK so I am not aware of the issue you highlighted on Sprint (as we do not have it here) ... my issue seems nothing to do with network - I have tried multiple sims from various network and still no luck.
Also, I do not see any setting to update PRL...
Click to expand...
Click to collapse

reso newt said:
I was wondering if you made any progress with the "No mobile network available". I tried a multitude of options with no success regarding the mobile error on my phone.
I think an OTA update at the beginning of November bugged my antennae firmware....best guess I can come up with. I only made OTA updates (no OS altercations) prior to the bugged antennae update. Looks like I have to get a new phone.
Edit: I forgot to mention that the repair technician that I spoke to in early November that told me that my phone cannot connect to 4G LTE admitted he was wrong today.
Click to expand...
Click to collapse
I am not sure if you have gotten any further with this issue - I doubt it tbh.
I have actually tried a number of things and been through 100s of forums - I have learnt that this issue is not uncommon, and there is no solution at all that exists. I have given up and settled on a new phone. I use my Moto X for testing apps/wifi/music. Such wastage, but I have got to the point where investing effort of finding a solution was more costly than getting a new phone. I do not say this lightly and it is said with a lot of frustration.
If anyone if future sees this thread and has solution, I would be more than interested in hearing it - I wouldnt mind reviving this phone.
Thanks

nirpaudyal said:
I am not sure if you have gotten any further with this issue - I doubt it tbh.
I have actually tried a number of things and been through 100s of forums - I have learnt that this issue is not uncommon, and there is no solution at all that exists. I have given up and settled on a new phone. I use my Moto X for testing apps/wifi/music. Such wastage, but I have got to the point where investing effort of finding a solution was more costly than getting a new phone. I do not say this lightly and it is said with a lot of frustration.
If anyone if future sees this thread and has solution, I would be more than interested in hearing it - I wouldnt mind reviving this phone.
Thanks
Click to expand...
Click to collapse
Best of luck. Sorry to see a fallen soldier, I know how it feels!
Sent from my XT1575 using Tapatalk

SR3TLAW said:
Best of luck. Sorry to see a fallen soldier, I know how it feels!
Sent from my XT1575 using Tapatalk
Click to expand...
Click to collapse
Thank you - I like the way you said that. Makes me feel like one of the community members ... I can see I will be supported in times of need.

Call dropping after 58.1.A.5.159 update

Hi folks,
after the last update I have a big problem: when I start a call suddently the signal goes 0 (on both SIMs) and I receive a "no network" error. After a few seconds the signals go back but sometimes I have to wait for 15 or 20 minutes to call otherwise the call drops again.
It happens even when receiving calls.
I have this problem at around 30/40% of calls I try to make and this is very disappointing because I use the phone for work and I do many calls everyday.
A user on an Italian forum had the same problem two updates ago, he told me that he solved after a reset of the phone. I'm desperate now, tomorrow it's holiday in Switzerland so I think I will do it.
NOTE: It's strange nobody on internet is talking about this problem... It's only me?

Having the same issues with this build.
I have the HK dual sim, which I flashed the SEA firmware onto last year.
I'm having to go back to my old phone until this is resolved, I have missed several calls because of it. I tried a factory reset, which seemed to clear it up for a short while, but the problem came back.

Same problem here. After the update of
51.1.A.5.159​I cannot receive or place calls
I cannot receive or send messages
IF I am inside a building. The network goes from 2 bars to 0 when I try to call. If i go outside of the building the cellular network is stronger (full) and calls are going through. I suspect there's something wrong with the baseband maybe? Which is what I was trying to search for yesterday. Was wondering if the current baseband for Android 11 is new or maybe it is the old one from Android 10?
Regardless, I can wholeheartedly say that Android 11 has basically shattered the signal strenght on this device to the point of making it useless. Now I can use it as a multimedia device... weeeheeeee.... Buy a premium device they say, it will be worth it, they say. Never had this issue on any of my Oneplus devices. Shame on Sony!
(btw my phone has the international software, not the HK one. using it on one single sim- XQ-AT-51).

The italian user told me now he's fine, the problem didn't came back.
Tomorrow I have a Switzerland holiday, I'm going to reset the phone to try to fix the problem.
Thanks for answering my question, it seems I'm not the only one with this problem. It's a pity there's no more official Sony forum to discuss these issues.

theskig said:
The italian user told me now he's fine, the problem didn't came back.
Tomorrow I have a Switzerland holiday, I'm going to reset the phone to try to fix the problem.
Thanks for answering my question, it seems I'm not the only one with this problem. It's a pity there's no more official Sony forum to discuss these issues.
Click to expand...
Click to collapse
Please do let us know how you get going. I too wanted to perform a factory reset but I've postponed it in case I could find some answers on the internet.

1ceb0x said:
Please do let us know how you get going. I too wanted to perform a factory reset but I've postponed it in case I could find some answers on the internet.
Click to expand...
Click to collapse
The phone is now restoring the backup from Google but this evening I don't think I will make a single call.
Tomorrow at work I will stress it (usually I make 1h of calls everyday, using both SIMs), and give you the results. Cheers!

The situation is maybe worse than before.
I don't remember if is it possible to downgrade. Xperifirm? Still works with new phones?
Otherwise I have to use my old XZ Premium because I have so many issues at work.

1ceb0x said:
Same problem here. After the update of
51.1.A.5.159​I cannot receive or place calls
I cannot receive or send messages
IF I am inside a building. The network goes from 2 bars to 0 when I try to call. If i go outside of the building the cellular network is stronger (full) and calls are going through. I suspect there's something wrong with the baseband maybe? Which is what I was trying to search for yesterday. Was wondering if the current baseband for Android 11 is new or maybe it is the old one from Android 10?
Regardless, I can wholeheartedly say that Android 11 has basically shattered the signal strenght on this device to the point of making it useless. Now I can use it as a multimedia device... weeeheeeee.... Buy a premium device they say, it will be worth it, they say. Never had this issue on any of my Oneplus devices. Shame on Sony!
(btw my phone has the international software, not the HK one. using it on one single sim- XQ-AT-51).
Click to expand...
Click to collapse
The thing I noticed is that the call drops when switching network from 4G to 2G. Expecially on my Italian SIM, i have a weak 4G signal in my office (1-0 bars) but I have a full 4 bars 2G signal. Before this update when I start a call you can clearly see the signal bar going from 0-1 to full 4 meaning the phone switched to 2G. After this update it was impossible to place a call from my office on my italian SIM because it fails in that 4G/2G switch.
I put that SIM in "GSM only" and I had no issues in managing calls. It's unpractical but works.
The problem is worse on my Swiss SIM (the one I use for work) that has no 2G coverage, so I leave it in 5G/LTE/WCDMA/ecc ecc and hope the best. But I see some switch happens even there ranging from 0-1 to 3 bars (I think is 4G/3G switch. I don't have 5G or 2G coverage in my office). So I can't do anything to avoid the issue, that happens randomly but it's quite frustrating

(...)Same problem on HK. Does anyone think that the problem will be solved with an update? Sony flagship haha. The gsm signal was much weaker than the former P20pro before .... 178. Now ..... disaster. I think the only asset Remaining that you can read "network unavailable" on a 4K screen

So far mine seems much better after the latest update 58.1.A.5.222.
Here's hoping it was a temporary glitch.

Please try to use only one SIM until new updates.
I have the same issues but with only one it works fine.
Do we have any news about a new update so far ?
Have a good day!

Today the 58.1.A.5.222A update arrived, I tested the phone and seems to be OK, tomorrow I will test it harder during the workday.
PS: since two weeks I was using my old XZ Premium and the 1 II was resting in the drawer. So sad. I tried to flash another firmware but I had errors on Flashtool and newflasher. Nothing worked wtf.

After a working day in my office with many calls on both SIMs (a place where the problem was at its best as wrote before) I can confirm you the update completely solved the problem.
So thanks to everybody for the support, I hope you'll also be able to fix it with this update.
beachbloke said:
So far mine seems much better after the latest update 58.1.A.5.222.
Here's hoping it was a temporary glitch.
Click to expand...
Click to collapse
"Temporary glitch" un par di balle*: 3 weeks with my old XZ Premium, and the actual flagship "Xperia 1 II" in the drawer! And resets, backups, restores, tests, copying gigabytes of data from and to the phone, hours of trying to flash other firmwares and receiving only errors...
* https://forum.wordreference.com/threads/par-di-balle.1875980/

theskig said:
Today the 58.1.A.5.222A update arrived, I tested the phone and seems to be OK, tomorrow I will test it harder during the workday.
PS: since two weeks I was using my old XZ Premium and the 1 II was resting in the drawer. So sad. I tried to flash another firmware but I had errors on Flashtool and newflasher. Nothing worked wtf.
Click to expand...
Click to collapse
I got the same software number and my problem still persists. Thank you for updating the thread with your findings. Glad to hear yours is working now.

Hello everyone, I faced the same issue on my device after updating to the software version mentioned by author, I've fixed the issue by flashing .280 software for SEA customisation. Original one was HK. So, now I'm able to use my phone as usual. Hope this tip will help somewho. Good luck with your devices.